These linings are applied starting at and parallel to the eaves in 36 inch wide strips with a 19 inch overlap for successive sheets.
How to tile a low pitch roof.
Conventional roofs are the easiest to construct and you can walk on them safely.
It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.
Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks.
For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.
Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15.
Once a tile has been specified for the low pitch roof and the installation instructions have been double checked make sure you adhere to the following.
For a low slope residential roof there are two main options.
They can also be used on low pitched roofs such as the sandtoft 20 20 tile which is a highly popular clay option that can be installed on pitches of 15.
There are a number of way s in which you can overcome the issue of a low pitch and keep the parish council happy also it would not alter the look at of the building roof.
Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering.
Clay or cement tiles can be used on a wide range of roof pitches.
They have a pitch ranging from 4 12 to 9 12.
Use a smooth tile if possible avoid granular finishes never discharge a gutter rainwater pipe directly onto the roof use fixing clips if specified.
A low slope roof design typically has a pitch of between 2 12 and 4 12.
Ratios from that minimum up to 4 12 which are considered low pitch require double underlayment.
Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.
Decra tiles have a tile with a minimum pitch of 10 degrees.
1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products.
Redland regent concrete tile forticrete centurion however these have a minimum pitch of 10 5 degrees.
These roofs have a pitch less than 4 12.
Stuart nicholson director of roof systems at marley outlines how best to approach the preparation and specification of tiles for low pitch roofs.